Gas-check.



PATENTED AUG. 8, 1905.

A. URY. GAS CHECK.

APPLIUATION FILED SEPT. 6, 1904.

6 Maw 3 PHOTO-LHHOGRAFNERS WLSHWGYON u c ALFRED A. URY, OF NEW YORK, N.Y.

GAS-CHECK.

Specification of Letters Patent.

Patented Aug. 8, 1905.

Application filed September 6, 1904. Serial No. 223.551.

To all whom it may concern.-

Be it known that I, ALFRED A. URY, a citizen of the United States,residing in the city, county, and State of New York, (whose postofficeaddress is 67 and 69 Spring street, in said city,) have invented certainnew and useful Improvements in Gas-Checks, of which the following is adescription.

My invention relates to gas-checks used in connection with a Bunsentube, such as is employed in the construction of an incandescentgas-burner.

The object of my invention is to produce a check of this class whichwill be inexpensive, easily assembled, and which may be regulatedwithout effecting the air-supply of the Bunsen.

In the drawings forming part of this application, in which similarnumerals of reference represent corresponding parts throughout, Figure 1is a side elevation of a Bunsen provided with my improved check. Fig. 2is a vertical section through the center of the same. Fig. 3 is a view,partly in section, on the line 3 3 of Fig. 1. Figs. 4, 5, and 6 arecross-sectional views on the lines 4 4, 5 5, and 6 6, respectively, ofFig. 1. Figs. 7 and 8 are perspective views of parts of the check, and 9is aside elevation of the Bunsen tube, showing the preferred form ofside opening for receiving the check parts.

I have illustrated my invention as applied to an ordinary circularBunsen tube 1, having air-inlets 2, both of which may be of wellknownform. At 3 is the nipple, to which the Bunsen may be attached by meansof screw-threads 4, and which may be attached to the end of an ordinarygas-pipe. The top of the nipple 5 is provided with an aperture 6, whichis preferably in the center thereof and the surface of which is smoothin order to form a seat for the valve. At 7 is the valve, which isformed of a flat piece of material having an opening 8, adapted toregister with the opening 6, an upturned pin 9, adapted to enter anaperture in the valvespring, and from which the valve oscillates, and areduced end 10, which provides a shoulder 11 to hold the valve fromdisplacement in the tube.

At 12 is a seating-spring which is preferably provided with a flatcentral part, from which the ends 13 are diverted so as to give apressure on the central part, and an aperture 14, adapted to registerwith the apertures 6 and 8. At a point from the latter aperture andpreferably near the end is another aperture 15, which is adapted toreceive the pin 9 of the valve.

In order to provide for the assemblage of the parts, openings intransvere alinement are provided in the Bunsen, such as 16, which aredecreased in length at the top 17. When the parts are assembled, thespring is inserted through the openings 16 until in the proper position,when the ends 13 take to the reduced part 17 of the openings, theshoulders on the ends 13 thus preventing lateral movement of the spring.The valve is then inserted, the end 10 foremost, the nipple beingremoved from the tube forthis purpose,) until the pin 9 enters theaperture 15. The nipple is then screwed on, which forces the partstogether until the spring is under proper tension, when a set-pin 18 isinserted to hold the nipple fast.

From this description it will be obvious that the object of my inventionis to produce a valve which will oscillate from a point away from thegas-inlet, so as to control the inlet and regulate the'flow of gas bythe registering .of the aperture 8 with 6 and 14. The arm of the valveextending beyond the tube allows of the adjustment without interferingwith the air-inlet of the Bunsen. The oscillation of the valve islimited by the size of the aperture 16 and is preferably formed so thatthe flow of gas will not be entirely cut off when the valve is in itsextreme position.

While I have described in detail the exact construction of my check, Ibelieve myself to be the first to provide an oscillating valve pivotedat a point away from the center to govern the gas flow, and thereforedesire that the annexed claim he not limited to the precise detailsexcept where the same are specifically referred to.

Having described my invention, what I claim is* In a gas-check, thecombination of a nipple having a crown providing a valve-seat, anaperture therein, a valve adapted to oscillate on the seat and providedwith a port, a pin on the said valve, a leaf-spring on the valveprovided with a plurality of openings, one of which receives the pin ofsaid valve and another adapted to register with the aperture in the seatand port in the valve.

Signed this 30th day of August, 1904.

ALFRED A. URY.

Witnesses:

CHARLES G. HENsLEY, VVENoNA MARLIN.

